THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Pending Merger with NVIDIA Corporation) (Details) $ / shares in Units, $ in Millions		6 Months Ended
	Mar. 10, 2019 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2019 ₪ / shares	Mar. 10, 2019 ₪ / shares	Mar. 10, 2019 $ / shares	Dec. 31, 2018 ₪ / shares
Business Acquisition [Line Items]
Ordinary shares, par value (in NIS per share) | ₪ / shares			₪ 0.0175			₪ 0.0175
NVIDIA Merger
Business Acquisition [Line Items]
Ordinary shares, par value (in NIS per share) | ₪ / shares				₪ 0.0175
Conversion price of shares (in usd per share) | $ / shares					$ 125.00
Merger extension period	3 months
Termination fee, due to Parent	$ 225.0
Termination fee, due from Parent	$ 350.0
Merger related costs		$ 7.8